TL;DR: Never enter floodwater, move to high ground fast, and secure insurance weeks ahead.

A household flood plan that works starts with three actions: never walk, swim, or drive through floodwater, move to higher ground without waiting for an order when flash flooding is possible, and carry separate flood insurance because a standard homeowners policy does not cover flood damage. Those points were laid out together in a flood safety guide published September 21, 2026 by Inszone Insurance, which organized preparation into before, during, and after stages for homeowners.

Why six inches of water stops people and cars

Flash floods rank among the leading causes of weather-related deaths in the United States, according to Inszone Insurance citing the National Weather Service. Six inches of moving water can knock a person off their feet, while one foot of moving water can sweep away a small vehicle.

The same water-depth risk is described by Ready.gov, as cited in the Inszone Insurance guide, which states that six inches of moving water can knock down an adult and 12 inches can carry away a small car. Floodwater also carries sewage, chemicals, and bacteria, increasing the risk of waterborne illness in addition to drowning and debris injuries, according to Inszone Insurance.

The Virginia Department of Conservation and Recreation adds scale to the property risk: just one inch of water can cause up to $25,000 in damages. Flooding is the most common and costly natural disaster in Virginia, occurring year-round from hurricanes, tropical storms, spring downpours, and flash floods, according to the Virginia Department of Conservation and Recreation.

Flood insurance has a 30-day wait

A standard homeowners policy does not cover flood damage, according to Inszone Insurance. Flood insurance is a separate policy, and coverage through the National Flood Insurance Program takes 30 days to go into effect.

The Iowa Department of Insurance and Financial Services gave the same timing in a September 16, 2026 disaster-preparedness release, stating that a typical flood policy takes 30 days to go into effect once activated. The Iowa agency also advised residents to review coverage limits and deductibles with a licensed insurance agent and to determine whether flooding is covered under an existing policy.

The Virginia Department of Conservation and Recreation reported that most standard homeowners and renters policies do not cover flood damage. It also reported that more than 99% of U.S. counties have been affected by flooding over the past 30 years and that more than 40% of National Flood Insurance Program claims come from low-risk areas.

Homeowners should therefore check coverage before a forecast, not after one. The Virginia Department of Conservation and Recreation directs residents to www.floodsmart.gov for flood-insurance information.

Know your flood zone, watch, and warning

Households should check whether a home is in a flood zone through the Federal Emergency Management Agency's Flood Map Service Center, according to Inszone Insurance. Residents can also sign up for alerts from the National Weather Service or Federal Emergency Management Agency for advance warning.

Virginia residents have an additional state lookup tool. The Virginia Flood Risk Information System helps determine flood risk and shows whether a property is located in a Special Flood Hazard Area, according to the Virginia Department of Conservation and Recreation.

Alert wording matters. A flood watch means conditions are favorable for flooding, while a flood warning means flooding is imminent or occurring, according to Inszone Insurance. The guide advises planning an evacuation route before water rises rather than during rising water.

For coastal Virginia, evacuation-zone awareness is distinct from flood-zone awareness. About 1.25 million residents live in coastal Virginia, and those residents should know their evacuation zone, according to the Virginia Department of Conservation and Recreation. Residents should also sign up for their locality's emergency notification system and heed alerts from the National Weather Service, according to the same agency.

Build a three-day kit and document file

Keep at least three days of supplies ready for everyone in the household, according to Inszone Insurance. The listed supplies include water, non-perishable food, a flashlight, a battery-powered or hand-crank radio, phone chargers, batteries, a first aid kit, medications, a multi-purpose tool, sanitation and personal hygiene items, and copies of important documents.

Vaccination records should be kept handy, or household members should at least know the date of the last tetanus shot, because injury or exposure to contaminated water may require that information, according to Inszone Insurance.

The Virginia Department of Conservation and Recreation notes that it can take several days for government officials to reach residents after a disaster, making a household emergency kit with water supply, medication, and safety items vital. The Iowa Department of Insurance and Financial Services also recommends making digital and physical copies of critical personal documents, including insurance policies and medical and financial documents, in case originals are lost.

The Iowa agency further recommends building an emergency fund and keeping cash on hand to cover living expenses if a disaster forces evacuation. Before a disaster, it recommends completing a home inventory with photographs and using the National Association of Insurance Commissioners home inventory app to support future claims.

Protect drains, doors, valuables, and utilities

Clear gutters and drainage systems of debris well before storm season, according to Inszone Insurance. A clogged drain can turn manageable rainfall into standing water around a foundation.

Sandbags placed at doorways and low points can redirect small amounts of water away from entry points, according to Inszone Insurance. Flood barriers or door dams offer similar protection for homes in lower-risk areas expecting moderate water.

The Virginia Department of Conservation and Recreation gives the same drainage guidance: clean and maintain gutters so water flows away from the building, and keep nearby storm drains and drainage areas clear of debris. Valuables and important documents should be stored in a waterproof container on an upper floor, according to the Virginia agency.

Utilities need elevation in higher-risk homes. Elevate a water heater, furnace, and other utilities if the home is in a high-risk area, according to the Virginia Department of Conservation and Recreation. Foundation cracks should be sealed with mortar and masonry caulk or hydraulic cement to fill gaps, and basement walls should be sealed with waterproof materials, according to the same agency. A sump pump can direct groundwater from around the house away from the home, according to the Virginia agency.

Fall is described as one of the best times to inspect a home for needed repairs and possible hazards, according to the Iowa Department of Insurance and Financial Services. That inspection includes clearing gutters, checking insulation, cutting branches and trees near the home, and, when advance notice of a storm is available, securing loose objects and patio furniture.

What to do during rising water and on the road

If flash flooding is possible, move to higher ground immediately and do not wait for an official evacuation order, according to Inszone Insurance. Listen to local radio, television, or emergency alerts and follow instructions from local authorities.

Anyone evacuating should turn off utilities at the main power switch and close the main gas valve before leaving, according to Inszone Insurance.

If evacuation is not possible and water is rising around the home, move to the highest level available, according to Inszone Insurance. Avoid closed attics without an exit route because rising water can trap occupants there. Stay away from electrical equipment while wet or standing in water, and avoid contact with floodwater whenever possible.

Never drive through a flooded road, according to Inszone Insurance. Do not drive around barricades because they are placed specifically to keep people out of dangerous water. Stay away from bridges over fast-moving water because they can collapse without warning, avoid fallen power lines, poles, and wires, and watch for falling trees and debris, according to Inszone Insurance.

Vehicle response depends on water movement. If a car is caught in rising water and the water is not moving, abandon the vehicle and move to higher ground immediately rather than waiting inside, according to Inszone Insurance. If water is moving rapidly around a stalled car, stay inside and move to the roof if water continues to rise, then call for help as soon as it is safe to do so.

After the flood: return, cleanup, and claims

If household members evacuated, wait for officials to confirm that return is safe before going back, according to Inszone Insurance. Check for structural damage before entering. If damage to water, gas, electric, or sewer lines is suspected, contact the appropriate authorities before proceeding. Use flashlights or battery-powered lanterns rather than candles to avoid fire risk.

Clean and disinfect everything that got wet because floodwater can carry sewage, bacteria, and other contaminants, according to Inszone Insurance. Wear protective gloves and boots during cleanup and avoid contact with floodwater whenever possible.

Throw away any food that touched floodwater or lost refrigeration, according to Inszone Insurance. Use sealed bottled water until the municipal supply is confirmed safe. Discard porous or absorbent items, including carpet and upholstery, that cannot be fully disinfected.

For insurance, report the loss right away and document everything with photographs before cleanup begins, according to Inszone Insurance. The Iowa Department of Insurance and Financial Services gives the same sequence: prioritize personal safety, secure the property once safe, document all damage with photos, and save receipts from temporary repairs before beginning major cleanup. It advises contacting a state-registered insurance agent immediately after a disaster to discuss filing an insurance claim.

Contractor fraud rises after disasters. The Iowa agency warns residents to verify that contractors are legitimate, check their filings, obtain written estimates from at least three different contractors, be cautious about signing an assignment of benefits, and never pay in full upfront.

Sources referenced